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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

ATI Radeon HD 4670

188%
188%

AMD Radeon HD 6450

53%
53%
ATI Radeon HD 4670 is approximately 135% faster

Technical Specifications

SpecificationATI Radeon HD 4670AMD Radeon HD 6450
Graphics ProcessorDifferent
RV730
Caicos
CoresDifferent
320
160
TMUsDifferent
32
8
ROPsDifferent
8
4
Memory Size
512 MB
512 MB
Memory Type
GDDR3
GDDR3
Bus WidthDifferent
128 bit
64 bit

Graphics Processor

FeatureATI Radeon HD 4670AMD Radeon HD 6450
GPU NameDifferent
RV730
Caicos
GPU VariantDifferent
RV730 XT(215-0719047)
Caicos PRO
ArchitectureDifferent
TeraScale
TeraScale 2
Foundry
TSMC
TSMC
Process SizeDifferent
55 nm
40 nm
TransistorsDifferent
514 million
370 million
DensityDifferent
3.5M / mm²
5.5M / mm²
Die SizeDifferent
146 mm²
67 mm²
Chip PackageDifferent
FCBGA-880
FCBGA-631

Graphics Card

FeatureATI Radeon HD 4670AMD Radeon HD 6450
Release DateDifferent
Sep 10th, 2008
Apr 7th, 2011
GenerationDifferent
Radeon R700(HD 4600)
Northern Islands(HD 6400)
PredecessorDifferent
Radeon R600
Evergreen
SuccessorDifferent
Evergreen
Southern Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
67 USD
55 USD
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
ReviewsDifferent
49 in our database
14 in our database

Clock Speeds

FeatureATI Radeon HD 4670AMD Radeon HD 6450
GPU ClockDifferent
750 MHz
625 MHz
Memory ClockDifferent
1000 MHz2 Gbps effective
500 MHz1000 Mbps effective

Memory

FeatureATI Radeon HD 4670AMD Radeon HD 6450
Memory Size
512 MB
512 MB
Memory Type
GDDR3
GDDR3
Memory BusDifferent
128 bit
64 bit
BandwidthDifferent
32.00 GB/s
8.000 GB/s

Render Config

FeatureATI Radeon HD 4670AMD Radeon HD 6450
Shading UnitsDifferent
320
160
TMUsDifferent
32
8
ROPsDifferent
8
4
Compute UnitsDifferent
4
2
L1 CacheDifferent
16 KB (per CU)
8 KB (per CU)
L2 Cache
128 KB
128 KB

Theoretical Performance

FeatureATI Radeon HD 4670AMD Radeon HD 6450
Pixel RateDifferent
6.000 GPixel/s
2.500 GPixel/s
Texture RateDifferent
24.00 GTexel/s
5.000 GTexel/s
FP32 (float)Different
480.0 GFLOPS
200.0 GFLOPS

Board Design

FeatureATI Radeon HD 4670AMD Radeon HD 6450
Slot Width
Single-slot
Single-slot
LengthDifferent
193 mm7.6 inches
168 mm6.6 inches
TDPDifferent
59 W
18 W
Suggested PSUDifferent
250 W
200 W
OutputsDifferent
2x DVI1x S-Video
1x DVI1x HDMI 1.3a1x VGA
Power Connectors
None
None
Board NumberDifferent
B666, 109-B70931-10
109-C26037-00A

Graphics Features

FeatureATI Radeon HD 4670AMD Radeon HD 6450
DirectXDifferent
10.1 (10_1)
11.2 (11_0)
OpenGLDifferent
3.3
4.4
OpenCLDifferent
1.1
1.2
Vulkan
N/A
N/A
Shader ModelDifferent
4.1
5.0

Comparison Summary

7
Specifications Compared
8
Feature Categories
44
Detailed Features

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